Improvement in steam-pans for evaporators



BARTLE & PUTNEY.

Evaporating Pan.

No. 45,667. Patentgd Dec. 27, 1864.

Inventor:

Witnesses: 6 f @055 Y (DSBURNE'S PROCESS.)

AM PHOTO'UTHOLO. N.

Entree STATES FATENT OFFICE.

T. BARTLE AND F. PUTNEY, OF INDEPENDENCE, IO\VA, ASSIGNQR-S TO T. C.BARTLE.

IMPROVEMENT IN STEAM-PANS FOR EVAPORATORS.

Specification forming part of Letters Patent No. 15,667, dated December27, 1864.

110 all whom it may concern:

Be it known that we, T. G. BARTLE and O.

F. IUTNEY, of Independence, in the county of Euchanan and State of Iowa,have invented a new and useful Improvement in Steam-Pans for Evaporators; and we do hereby declare that the following is a full, clear,and exact description thereof, reference beinghad to the accompanyingdrawings and'the letters and figures marked thereon,which form part ofthis specification. V

In the said drawings, Figure 1. represents a longitudinal verticalsection of our invention; Fig. 2, a front or end view thereof, and Fig.is a plan view of the steam-pans detached from the evaporator.

The same letters of reference in the different figures denotecorresponding parts of our invention.

The nature of our invention consists in the employment of a series ofsteam-pans arranged transversely beneath the main evaporating pan,between it and the fire, with suitable intervening spaces between saidsteam-pans, provided with adj ustable slides or dampers, whereby thesaid spaces may be gradually opened or closed.

The object of our invention is to prevent the sirup from being burned orscorched by the action of the fire when the j nice has been evaporatedto that point where the danger of burning or searching intervenes, asthe aforesaid dampers may then be adjusted so as to cover or close thesaid spaces intervening between the stean'i-pans, and thus entirelyexclude the lire from the evaporating-pan, and so continue theevaporating process to any desired point by the action of steam alone.By this arrangement it will also be observed that whenever it is desiredto increase the temperature of the boiling mass the object can beaccomplished by gradually opening said slides or dampers and allow theheat and fire to pass up through the said spaces, and thus superchargethe steam with heat, and so hasten the process of evaporating withoutany danger of burning; for by the arrangement of said dampers the heatpasses up the entire width of the evaporating-pan, and as the steamrising from the steam-pans passes back to go out of the line or chimneyit effectual] y intermingles and incorporates itself with the fieryheat,and tones down the same, and prevents it from scorching or burningthe sirup.

To enable those skilled in the art to understand how to construct anduse our invention, we will proceed to describe the same withparticularity, reference being made to the aforesaid drawings.

A represents the arch in which the evaporating-pan is placed, (markedB,) and C G 0 represent a series of pans arranged beneath theevaporating-pan B, as shown, said pans being equal in length to thewidth of the crap crating-pan, and sufficient in number so that theseries, including the intervening spaces, (marked D D,) shall equal thelength of the evaporating-pan. These pans G are to be partially filledwith water, so that the steam arising therefrom may heat the upper panand evaporate the contents.

E E represent the slides or dampers for regulating and closing thespaces 1) D, and are provided with the rods F F, projecting at the frontof the apparatus,whereby the said slides may be readily adjusted uponthe spaces.

H II represent pipes connecting the several pans C, so that the wholeseries may be supplied with water by pouring in at the pan at the frontpart of the apparatus.

I I represent two shoes passing under the ends of the steam'pans, and towhich they are attached, so that the whole series may be with drawn from or placed beneath the evaporating-- pan, as may be desired, so thatat the commencement the whole heat from the fire may come in contactwith the same, and when the danger of burning arises the steanrpans maybe introduced and the danger controlled and prevented, as aforesaid. Byopening the slides E E and allowing the. heat to pass up through thespaces 1) D the evaporation is rendered much more rapid,while at thesame time there is no danger of burning the sirup, for the steam andheat from the fire, owing to the aforesaid arrangement of the spaces andslides, must thoroughly inter-mingle, and while the steam issupercharged with the heat passing up through the spaces, at the sametime the effect of the steam upon the heat is such as to prevent itsburning the sirup.

The arrangement of the dampers upon the spaces we consider an importantone, for ifthe slides were moved over the said spaces longitudinallywith respect thereto, then part of the spaces would be wholly closed andthe other end would be wholly open. The result would be that one side ofthe evaporating-pan would be heated entirely by steam and the other sidethereof entirely by the fire, the column of heat passing through theopen end of the space remaining isolated, and the steam passing aroundthe same and escaping unmingled. This obj ection is wholly obviated byour invention.

WVe do not limit our invention to itsapplication to the eva ciorating ofsaccharine juices; but it may be applied to all similar and anal0 gOlJSUSCS.

Having described our improvement,we'will now specify what we claim asnew and desire to secure by Letters Patent The employment of a series ofsteam-pans, O O 0, provided with the slides E E for closing the spaces DD, in combination with the evaporating-pan 13, arranged and operatingsubstantially as and for the purposes herein shown and described.

T. C. BARTLE. O. F. PUTNEY.

\Vi tn esscs:

\VM. A. CHATFIELD, XV. HI. TULLIs.

